Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4GUD callsign genealogy
Currently held by Gudmestad, Bjorn
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by N4GUD's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4GUD.
- WATSON III, JOHN CSCgranted 2023-07-04
All historical holders
Every license row we've seen with the callsign N4GUD, oldest first.
- WATSON III, JOHN C SC2006-02-04 → cancelled 2013-09-13
- Gudmestad, Bjorn CO2017-05-26 active